How do you fill voids in plywood?

Would you like to know how to fill voids in wood? Whether you need to fill a small hole or want to repair a large gap, this guide will show you how.

What do you use to fill voids in wood?

  • Wood filler. This is the most traditional way to fill voids in wood and will result in a natural look. The downside is that it can be very messy and make your project look cheap. However, it’s also very cheap and easy to use so if you’re on a budget or just want the fastest option, this might be right for you!
  • Epoxy. Epoxy is a more advanced method of filling voids because it takes longer to dry than wood filler and has a different consistency—it’s thicker and harder than regular glue or putty but not as thick as epoxy itself. The upside of using epoxy over other options is that it dries clear so there are no unsightly bumps under your finish coat once painted over with paint or stain (make sure to sand everything beforehand). However, like with any chemical product, there are health risks involved if inhaled so please take precautions when working with this material!

Can you use wood filler on plywood?

In general, wood filler is not recommended for use on plywood. The glue in the plywood would be affected by the wood filler, causing it to expand and crack.

In addition, the epoxy may not dry completely, leaving an uneven surface that can lead to future problems.

The best option is epoxy filler. Epoxy has all of the benefits of regular wood glue with none of its drawbacks: it’s waterproof and won’t break down over time like regular wood glue will; it dries clear so you can easily judge how much you need; and most importantly, you don’t have to seal it afterward!

This last point means that if your project requires sanding or painting after filling in holes (or even just wiping down), your epoxy will stay intact through any finishing steps you take afterward.

How do you fill holes in plywood?

When it comes to filling voids in plywood, there are a number of options. The key is to choose the one that’s best suited for your needs.

  • Wood filler is a good option for when you’re using plywood as part of an indoor project or if the voids have been caused by wear and tear over time. It’s also great for covering smaller holes and dents in large pieces of plywood (for example, those used for furniture). However, wood filler tends not to be very durable so it shouldn’t be used where it’ll be exposed to moisture or other elements like rain or snow.
  • Epoxy caulking is another option if you’re looking for something more long lasting than wood filler but don’t want something as heavy duty as epoxy putty would provide—like a combination of both! Caulk should work well with most types of materials including aluminum trimming, drywall joints, and even concrete floors as well!

How do you fill a void?

  • Use a putty knife to apply the filler.
  • Apply the filler with a paintbrush.
  • Put some on the end of a rag and rub it in.
  • Put some on your finger and rub it in, or use toothpicks to apply it as needed.

What kind of epoxy do you use to fill voids in wood?

Epoxy is a great choice for filling voids in wood. It’s strong, durable, and waterproof, so it can be used indoors or outdoors.

Epoxy also makes a great adhesive for wood projects because it doesn’t warp the surface of your project like other adhesives may.

However, epoxy isn’t the best choice for filling holes in wood. The reason is that epoxies have to cure higher than most woods will tolerate without shrinking or warping so you have to wait several hours before you can sand them down and even then they may still shrink after the first couple of coats are applied.

Can I use epoxy to fill voids in wood?

Epoxy is a good option for filling holes in wood. It’s a two-part chemical compound that will harden and fill the void with a strong, durable substance.

Epoxies are available as either viscous liquids or hardening solids (the two parts of the epoxy). When mixed together and applied to your project, they will be set up into a solid mass.

The end result is like superglue — something that’s stronger than wood itself.

What is the difference between wood putty and wood filler?

  • Wood putty is softer than wood filler and will mold to the shape of a hole.
  • Wood filler, on the other hand, is a harder material that will fill in a large void.

How do you fill a large gap in wood?

You can fill the voids with a wood filler, or a putty. It’s just like sanding a piece of furniture. You’ll want to use an epoxy filler if you’re working with a very large gap or crack in your project that needs filling.

You might also try using polyurethane putty, which is often used for filling small gaps and is available at most hardware stores.

Polyurethane fillers are especially good if you want to avoid buying multiple products from different companies when you’re doing DIY projects around your home because they work as both fillers and glues!


There are many different ways to fill voids in wood. You can use caulk, epoxy, or paint to fill the gap.

We recommend using epoxy because it is easy to work with and will last much longer than other types of fillers.

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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